John felt he was going through the tribulation and if anyone should know, it would be John.
This indicates that the book of the Revelation was written in a time of perseuciton - repeated in Rev 2:10, 12:11 and 13:15To: CronosRevelation 1:9 I, John, your brother and fellow partaker in the tribulation and kingdom and perseverance which are in Jesus, was on the island called Patmos because of the word of God and the testimony of Jesus.John felt he was going through the tribulation and if anyone should know, it would be John.
This was only wide-spread during Nero's time, not in the 90s under Domitian
Tacitus relates how Nero amused himself with the torture of Christians - in his Annals